Allied-telesis Removable Power Supply and Fan Manuel d'utilisateur Page 19
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Removable Power Supply and Fan
18
Checking LEDs
LEDs on PSUs, fans, and the front panels of switches indicate the operational
status of the devices. After you have installed a PSU or fan and have powered on
the switch, check the LEDs to verify operation by using the following tables.
PWR01
PWR02
The following table describes LEDs on the PWR01 and PWR02 power supply
units.
PWR05 The following is a diagram of the LEDs in the PWR05 power supply units:
LED State Description
FAULT Red The temperature on the PSU has exceeded the limit of
75º C (167º F), or the fan failed.
PWR
GOOD
Green A PSU is installed in the switch and is delivering power.
IN
LED
POWER
CONNECTOR
OUT
LED
FAULT
LED
- Installation Guide 1
- Contents 4
- About this Guide 5
- Compatible Switches 5
- Package Contents 6
- Captive screw 8
- Installing a PWR05 or FAN03 9
- Connecting an AC power supply 10
- Connecting a PWR01 or PWR02 12
- ■ 40 to 60V DC, 48V nominal 17
- Checking LEDs 19
- Before you begin 22
- Troubleshooting 25
- Other resources 26
- Contacting us 27
- Standards 28
- EC Declaration of Conformity 29
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